4.875 Gear Ratio Ring & Pinion Set (1312-27-110A)

4.875 Gear Ratio Ring & Pinion Set (1312-27-110A) - NLA

No Longer Available.

Fits cars with short pinion shafts:

  • 79-85 Rx7
  • 71-74 Rx2
  • 77-78 Rx3
  • 94-97 Miata


86-91 RX7 Non-Turbo Ring & Pinions: The 4.33 ratio gear set is the lowest gear set available for 1986-91 non-turbo RX7s.

To obtain an even lower gear ratio (4.44, 4.875, etc.) requires grafting (splining and welding) of a short pinion shaft from an early (1979-85) RX7 to the end of an (1986-91) RX7 non-turbo long pinion shaft. This is very complicated and should be done only by qualified machinists.

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  • $750.00
Out of stock
    • SKU
      1312-27-110A
    • Weight
      12 lbs
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  • Fitment Type
    Vehicle Specific
ModelYearEngine
Miata/Mx51994-19971.8L
Pre Rx769-7810A, 12A, 13B
Rx7197912A
Rx7198012A
Rx7198112A
Rx7198212A
Rx7198312A
Rx7198412A
Rx7198413B
Rx7198512A
Rx7198513B
Rx71990Non-Turbo

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